ZacharyZhang-NY
b7fca0146d
ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git), ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.
100 lines
3.7 KiB
Rust
100 lines
3.7 KiB
Rust
//! The audience screen: the slide alone, full screen.
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use ely_gpui_component::{
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feedback::InlineMessage,
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primitives::{FocusScope, Severity},
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};
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use gpui::{
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Context, Entity, FocusHandle, InteractiveElement as _, IntoElement, MouseButton,
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ParentElement as _, Render, Styled as _, Window, div,
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};
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use super::{Show, stage};
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pub struct Audience {
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pub show: Entity<Show>,
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pub focus: FocusHandle,
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}
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impl Audience {
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pub fn new(show: Entity<Show>, cx: &mut Context<Self>) -> Self {
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cx.observe(&show, |_, _, cx| cx.notify()).detach();
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Audience {
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show,
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focus: cx.focus_handle(),
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}
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}
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}
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impl Render for Audience {
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fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
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if self.show.update(cx, |show, cx| show.media_tick(cx)) {
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window.request_animation_frame();
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}
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self.show.update(cx, |show, _| show.free(0, window));
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let show = self.show.read(cx);
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let room = window.viewport_size();
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let size = stage::fit(show.slide, (room.width, room.height));
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let origin = ((room.width - size.0) / 2.0, (room.height - size.1) / 2.0);
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if show.moving() {
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window.request_animation_frame();
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}
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let shown = stage::stage(show, size, cx);
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// Alone, the audience screen says what failed.
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let notice = (show.notice.clone())
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.filter(|_| !show.presenter)
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.map(|why| {
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div()
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.absolute()
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.bottom_4()
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.left_4()
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.child(InlineMessage::new(Severity::Danger, why))
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});
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let (keys, click, back, moved) = (
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self.show.clone(),
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self.show.clone(),
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self.show.clone(),
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self.show.clone(),
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);
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// Keys reach ancestors of the focused scope.
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div()
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.size_full()
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.on_key_down(move |event, _, cx| {
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if keys.update(cx, |show, cx| show.key(&event.keystroke, cx)) {
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cx.stop_propagation();
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}
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})
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.child(
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FocusScope::new(&self.focus).root().size_full().child(
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div()
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.id("show-audience")
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.relative()
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.size_full()
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.flex()
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.items_center()
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.justify_center()
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.bg(gpui::black())
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.on_mouse_down(MouseButton::Left, move |event, _, cx| {
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let x = (event.position.x - origin.0) / size.0;
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let y = (event.position.y - origin.1) / size.1;
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click.update(cx, |show, cx| match show.media_at((x, y)) {
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Some(at) => show.toggle_media(at, cx),
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None => show.next(cx),
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})
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})
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.on_mouse_down(MouseButton::Right, move |_, _, cx| {
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back.update(cx, |show, cx| show.previous(cx))
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})
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.on_mouse_move(move |event, _, cx| {
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let x = (event.position.x - origin.0) / size.0;
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let y = (event.position.y - origin.1) / size.1;
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let inside = (0.0..=1.0).contains(&x) && (0.0..=1.0).contains(&y);
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moved.update(cx, |show, cx| show.point(inside.then_some((x, y)), cx))
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})
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.child(shown)
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.children(notice),
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),
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)
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}
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}
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